mirror of
https://github.com/prometheus-community/postgres_exporter
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Merge 34fc37992b
into f8b7139174
This commit is contained in:
commit
b8e77e3224
@ -15,7 +15,7 @@ package collector
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import (
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"context"
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"database/sql"
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"github.com/prometheus/client_golang/prometheus"
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)
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@ -66,19 +66,34 @@ func (c PGWALCollector) Update(ctx context.Context, instance *instance, ch chan<
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pgWALQuery,
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)
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var segments uint64
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var size uint64
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var segments sql.NullInt64
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var size sql.NullInt64
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err := row.Scan(&segments, &size)
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if err != nil {
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return err
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}
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var segmentsValue float64
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if segments.Valid {
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segmentsValue = float64(segments.Int64)
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} else {
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segmentsValue = 0
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}
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var sizeValue float64
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if size.Valid {
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sizeValue = float64(size.Int64)
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} else {
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sizeValue = 0
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}
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ch <- prometheus.MustNewConstMetric(
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pgWALSegments,
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prometheus.GaugeValue, float64(segments),
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prometheus.GaugeValue, segmentsValue,
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)
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ch <- prometheus.MustNewConstMetric(
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pgWALSize,
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prometheus.GaugeValue, float64(size),
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prometheus.GaugeValue, sizeValue,
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)
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return nil
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}
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